Domino Oxidative [Pd]-Catalysis: One-Pot Synthesis of Fluorenones Starting from Simple Benzylamines and Iodo Arenes
作者:Devarapalli Ravi Kumar、Gedu Satyanarayana
DOI:10.1021/acs.orglett.5b03077
日期:2015.12.4
fluorenones is presented. The overall reaction proceeds through the formation of a five membered Pd(II)-cycle via a highly regioselective ortho C(sp2)-H activation(s) of simple benzylamine that combines with external iodo arenes to give ortho arylated products. Significantly, the reaction further activates the C(sp3)-H and C(sp2)-H (intramolecular oxidative Heck coupling) bonds to give tricyclic imine systems
Tandem Aryne Sequence Route to the Synthesis of Substituted Fluorenones
作者:Perumal Rajakumar、Venghatraghavan Murali
DOI:10.1080/00397919508015488
日期:1995.11
Abstract Substituted m-terphenyl carboxylic acids of the type 1a–e were prepared by the tandem aryne sequence from substituted dihaloiodobenzenes with arylmagnesium bromide followed by quenching with CO2. The carboxylic acids 1a–e were converted into fluorenones 2a–e using either H2SO4 in CH3OH or PPA.